U.S. patent application number 14/950480 was filed with the patent office on 2016-05-26 for flat wiring body module.
This patent application is currently assigned to Yazaki Corporation. The applicant listed for this patent is Yazaki Corporation. Invention is credited to Atsushi NAKATA.
Application Number | 20160149329 14/950480 |
Document ID | / |
Family ID | 55967945 |
Filed Date | 2016-05-26 |
United States Patent
Application |
20160149329 |
Kind Code |
A1 |
NAKATA; Atsushi |
May 26, 2016 |
FLAT WIRING BODY MODULE
Abstract
A flat wiring body module includes a flat wiring body, a
containing member containing the flat wiring body, and a connector
part. The flat wiring body includes a flat wiring body for power
including a power circuit and a first flat board, a flat wiring
body for non-power including a non-power circuit and a second flat
board, and a flat wiring body for ground including a ground and a
third flat board. The flat wiring body for power, the flat wiring
body for non-power, and the flat wiring body for ground are stacked
in a state where the flat wiring body for ground is arranged
between the flat wiring body for power and the flat wiring body for
non-power.
Inventors: |
NAKATA; Atsushi;
(Makinohara-shi, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Yazaki Corporation |
Tokyo |
|
JP |
|
|
Assignee: |
Yazaki Corporation
Tokyo
JP
|
Family ID: |
55967945 |
Appl. No.: |
14/950480 |
Filed: |
November 24, 2015 |
Current U.S.
Class: |
439/660 |
Current CPC
Class: |
H02G 5/06 20130101; H01B
7/08 20130101; H01B 7/0045 20130101; H01B 13/01254 20130101; B60R
16/0207 20130101; H05K 9/00 20130101 |
International
Class: |
H01R 13/405 20060101
H01R013/405 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 26, 2014 |
JP |
2014-238365 |
Claims
1. A flat wiring body module comprising: a flat wiring body; a
containing member formed of resin for containing the flat wiring
body; and a connector part configured to connect a mating member,
wherein the flat wiring body comprises: a flat wiring body for
power comprising a power circuit which may serves as a noise source
or a noise passage, and a first flat board in which the power
circuit is provided; a flat wiring body for non-power comprising a
non-power circuit in which an influence of a noise is to be
avoided, and a second flat board in which the non-power circuit is
provided; and a flat wiring body for ground comprising a ground and
a third flat board in which the ground is provided; and wherein the
flat wiring body for power, the flat wiring body for non-power, and
the flat wiring body for ground are stacked in a state where the
flat wiring body for ground is arranged between the flat wiring
body for power and the flat wiring body for non-power.
2. The flat wiring body module according to claim 1, wherein the
flat wiring body further comprises another flat wiring body for
ground; and wherein the flat wiring body for non-power is arranged
between the flat wiring body for ground and the another flat wiring
body for ground.
Description
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application is based on Japanese Patent Application
(No. 2014-238365) filed on Nov. 26, 2014, the contents of which are
incorporated herein by reference. Also, all the references cited
herein are incorporated as a whole.
BACKGROUND
[0002] 1. Technical Field
[0003] The present invention relates to a flat wiring body module
provided with a flat wiring body which is formed by stacking a
plurality of wiring bodies.
[0004] 2. Background Art
[0005] Conventionally, a wire harness has been arranged in an
instrument panel of a motor car. Generally, this wire harness is
arranged along a reinforcing metal pipe. The wire harness is formed
by bundling a plurality of electric wires into a substantially
round shape in cross section. In arranging the wire harness as
described above, a relatively large protector capable of containing
the wire harness has been used (Refer to JP-A-2012-55105).
[0006] In JP-A-2012-55105, there is such a problem that in case
where a diameter of the wire harness grows larger following an
increase of circuits in number, for example, it is necessary to
secure a large space for arranging the wire harness according to
the diameter. Moreover, in the above described prior art, there is
a further problem, as described below. Since the wire harness is
formed by bundling a plurality of the electric wires, wires for
power and wires for signals, for example, may be positioned close
to each other, in some cases, and therefore, noises of the wires
for power are transmitted to the wires for signals, which becomes a
cause for cross talk.
SUMMARY
[0007] The present disclosure has been made in view of the above
described circumstances, and an object of the disclosure is to
provide a flat wiring body module capable of achieving space
saving, and at the same time, capable of being hardly affected by
noises.
[0008] In order to achieve the object, the flat wiring body module
according to the disclosure including a flat wiring body, a
containing member formed of resin for containing the flat wiring
body, and a connector part configured to connect a mating member,
wherein the flat wiring body includes: a flat wiring body for power
including a power circuit which may serves as a noise source or a
noise passage, and a first flat board in which the power circuit is
provided; a flat wiring body for non-power including a non-power
circuit in which an influence of a noise is to be avoided, and a
second flat board in which the non-power circuit is provided; and a
flat wiring body for ground including a ground and a third flat
board in which the ground is provided; and wherein the flat wiring
body for power, the flat wiring body for non-power, and the flat
wiring body for ground are stacked in a state where the flat wiring
body for ground is arranged between the flat wiring body for power
and the flat wiring body for non-power.
[0009] By the above configuration, because the flat wiring body
formed by stacking the flat wiring body for power, the flat wiring
body for non-power, and the flat wiring body for ground is adopted,
it is possible to cope with the problem of space, by enhancing
density of the circuits on the board, even though the number of the
circuits increases, and hence, space saving can be achieved.
Moreover, according to the disclosure, because the flat wiring body
for ground is interposed between the flat wiring body for power and
the flat wiring body for non-power, it is possible to avoid
influences of noises on the circuit for non-power, by the presence
of the flat wiring body for ground, even in case where the circuit
for power becomes a noise source or a noise passage. Further,
according to the disclosure, because the flat wiring body for
ground is interposed as described above, it is possible to position
the circuit for non-power remote from the circuit for power, by a
thickness of the flat wiring body for ground.
[0010] Therefore, according to the disclosure, such an advantage
that it is possible to save the space, and at the same time, to be
hardly affected by influences of noises is achieved. Additionally,
according to the disclosure, because the flat wiring body having
the above described structure is adopted, such an advantage that it
is possible to enhance freeness in designing is achieved.
[0011] For example, the flat wiring body further comprises another
flat wiring body for ground; and the flat wiring body for non-power
is arranged between the flat wiring body for ground and the another
flat wiring body for ground.
[0012] According to the above configuration, because the flat
wiring body for non-power is interposed between a plurality of the
flat wiring bodies for ground, such an advantage that it is
possible to avoid the influences of noises from the circuit for
power, and besides, to avoid influences of noises from an exterior
of the flat wiring body module too is achieved.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is a schematic view showing a flat wiring body module
according to the disclosure, in an installed state.
[0014] FIG. 2 is an exploded perspective view of the flat wiring
body module in FIG. 1.
[0015] FIG. 3 is an exploded perspective view and a perspective
view of a flat wiring body in FIG. 2.
[0016] FIG. 4 is an exploded perspective view and a perspective
view of a flat wiring body in another example.
[0017] FIG. 5 is an exploded perspective view and a perspective
view of a flat wiring body in still another example.
DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
[0018] A flat wiring body module includes a flat wiring body which
is formed by stacking a plurality of wiring bodies, a containing
member for containing this flat wiring body, and a connector part
for external connection. As the wiring bodies in the flat wiring
body as described above, there are a flat wiring body for power, a
flat wiring body for non-power, and a flat wiring body for ground.
These wiring bodies are stacked at least in such a manner that the
flat wiring body for ground is interposed between the flat wiring
body for power and the flat wiring body for non-power. As the
member for containing the flat wiring body in a more favorable
manner, a case formed of resin or a corrugate tube and so on are
recommended.
Embodiments
[0019] Several embodiments will be described below, referring to
the drawings. FIG. 1 is a schematic view showing the flat wiring
body module according to the disclosure, in an installed state.
Moreover, FIG. 2 is an exploded perspective view of the flat wiring
body module in FIG. 1, and FIG. 3 is an exploded perspective view
and a perspective view of a flat wiring body in FIG. 2. Further,
FIGS. 4 and 5 are exploded perspective views and perspective views
of flat wiring bodies in other examples.
[0020] In FIG. 1, reference numeral 1 represents the flat wiring
body module according to the disclosure. In this embodiment, this
flat wiring body module 1 is used as a substitute for the wire
harness in the prior art. Specifically, the flat wiring body module
1 is arranged along a reinforcing metal pipe in an instrument panel
of a motor car (as one example, but may be also arranged, for
example, in a side shell of the motor car). In this embodiment, the
flat wiring body module 1 is disposed between an electronic control
unit 2 and auxiliary devices 3, 4.
[0021] Reference numeral 5 in FIG. 1 represents a connecting member
(a short wire harness) for electrically connecting the flat wiring
body module 1 to the electronic control unit 2. Moreover, reference
numerals 6, 7 also represent connecting members (short wire
harnesses) for electrically connecting the flat wiring body module
1 to the auxiliary devices 3, 4 in the same manner.
[0022] It is to be noted that there are other auxiliary devices
besides the auxiliary devices 3, 4, and these other auxiliary
devices may be also connected to the flat wiring body module 1.
[0023] In FIGS. 1 and 2, the flat wiring body module 1 includes a
flat wiring body 8, a case 9 formed of resin (a containing member)
for containing this flat wiring body 8, and a plurality of
connector parts 10 for external connection. As will be understood
from the following description, this flat wiring body module 1 is
formed in a more compact shape than the wire harness which is
contained in a protector in the prior art. Moreover, the flat
wiring body module 1 is formed in such a manner that, even in case
where the number of circuits increases, the increase can be coped
with.
[0024] In FIGS. 2 and 3, the flat wiring body 8 includes a flat
wiring body 11 for power, a flat wiring body 12 for non-power, and
a flat wiring body 13 for ground. The flat wiring body 8 having the
above described structure is formed by stacking the wiring bodies
at least in a state where the flat wiring body 13 for ground is
interposed between the flat wiring body 11 for power and the flat
wiring body 12 for non-power.
[0025] In this embodiment, the flat wiring body 8 is formed in a
shape of a band (a rectangular shape in which a longer side is
remarkably elongated as compared with a shorter side), as seen in a
plan view. Because the flat wiring body 8 has the shape of a band,
the flat wiring body 11 for power, the flat wiring body 12 for
non-power, and the flat wiring body 13 for ground composing the
flat wiring body 8 are also formed in a shape of a band. It is to
be noted that this shape is only an example, and they can be formed
in appropriate shapes (for example, a crank shape, an L-shape, and
so on), taking an arranging route into consideration.
[0026] The flat wiring body 11 for power includes a first board 14
and a circuit 15 for power. The first board 14 is formed of
insulating material. Moreover, the first board 14 is so formed as
to be isolated from the circuits of the other wiring bodies. The
first board 14 is formed in a shape of a band whose front and back
faces (upper and lower faces) are flat. In short, the first board
14 is formed in a flat shape. The first board 14 as described above
is formed having a predetermined thickness.
[0027] The circuit 15 for power includes one or a plurality of
circuits for power which are formed in a desired pattern, and
corresponds to the circuit which can be a noise source or a noise
passage. As the circuit 15 for power, a bus bar or a flat conductor
which is publicly known is adopted. The circuit 15 for power is
provided in such a manner that a main body thereof is embedded in
the first board 14 (as one example, but not particularly limited,
provided that the circuit 15 can be isolated from the circuits of
the other wiring bodies).
[0028] A part of the circuit 15 for power which is protruded from
an end of the first board 14 is formed as a terminal 16 for
external connection. The terminal 16 is a part for constituting the
connector part 10. In this embodiment, the terminal 16 is formed in
a shape of a tab. It is to be noted that the terminal 16 need not
be formed in such a manner as described in this embodiment. For
example, it is possible to prepare a separate component as the
terminal, and to attach this terminal afterward (Terminals 19, 22
which will be described below may be also prepared in the same
manner).
[0029] The flat wiring body 12 for non-power includes a second
board 17 and a circuit 18 for non-power. The second board 17 is
formed in a substantially same manner as the first board 14.
Specifically, the second board 17 is formed of insulating material.
Moreover, the second board 17 is so formed as to be isolated from
the circuits of the other wiring bodies. The second board 17 is
formed in a shape of a band whose front and back faces (upper and
lower faces) are flat. In short, the second board 17 is formed in a
flat shape. The second board 17 as described above is formed having
a predetermined thickness (the same thickness as the first board
14, in this embodiment).
[0030] The circuit 18 for non-power includes one or a plurality of
circuits which are formed in a desired pattern, and corresponds to
the circuit for non-power in which influences of noises are to be
avoided. As the circuit 18 for non-power, a bus bar or a flat
conductor which is publicly known is adopted. The circuit 18 for
non-power is provided in such a manner that a main body thereof is
embedded in the second board 17 (as one example, but not
particularly limited, provided that the circuit 18 can be isolated
from the circuits of the other wiring bodies).
[0031] A part of the circuit 18 for non-power which is protruded
from an end of the second board 17 is formed as a terminal 19 for
external connection. The terminal 19 is a part for constituting the
connector part 10. In this embodiment, the terminal 19 is formed in
a shape of a pin (as one example).
[0032] It is to be noted that a plurality of the circuit 18 for
non-power (denoted with dashed numerals) may be provided, as shown
in FIG. 4. In case where there are a number of circuits for
non-power in which influences of noises are to be avoided, such a
structure as shown in FIG. 4 had better be adopted, and this
structure is effective, of course.
[0033] The flat wiring body 13 for ground includes a third board 20
and a ground 21 (also called as a GND or a ground). The third board
20 is formed in a substantially same manner as the first board 14
and the second board 17. Specifically, the third board 20 is formed
of insulating material. Moreover, the third board 20 is so formed
as to be isolated from the circuits of the other wiring bodies. The
third board 20 is formed in a shape of a band whose front and back
faces (upper and lower faces) are flat. In short, the third board
20 is formed in a flat shape. The third board 20 as described above
is formed having a predetermined thickness (the same thickness as
the first board 14 and the second board 17, in this
embodiment).
[0034] The ground 21 includes one or a plurality of circuits which
are formed in a desired pattern, and is so formed as capable of
exerting well-known functions of the ground. As the ground 21, a
bus bar or a flat conductor which is publicly known is adopted.
Alternatively, a sheet metal or a metal foil may be adopted. The
ground 21 is provided in such a manner that a main body thereof is
embedded in the third board 20 (as one example, but not
particularly limited, provided that the ground 21 can be isolated
from the circuits of the other wiring bodies). For example, a sheet
metal or a metal foil may be attached to a back face of the third
board 20.
[0035] A part of the ground 21 which is protruded from an end of
the third board 20 is formed as a terminal 22 for external
connection. The terminal 22 is a part for constituting the
connector part 10. In this embodiment, the terminal 22 is formed in
a shape of a tab having a narrow width.
[0036] The flat wiring body 13 for ground is interposed between the
flat wiring body 11 for power and the flat wiring body 12 for
non-power. In other words, a part for exerting function of the
ground is interposed between the flat wiring body 11 for power and
the flat wiring body 12 for non-power.
[0037] It is to be noted that a plurality of the flat wiring bodies
13 for ground (denoted with dashed numerals) may be provided, as
shown in FIG. 5, so that the flat wiring body 12 for non-power is
interposed between them. In case where influences of noises from
the exterior are to be avoided, such a structure as shown in FIG. 5
may be adopted. It is apparent that this structure is
effective.
[0038] In FIG. 2, the case 9 is a component formed of resin for
containing the flat wiring body 8, as described above, and includes
a case body 23 and a lid body 24. The case 9 is formed in
conformity with the shape of the flat wiring body 8.
[0039] The case body 23 is formed in a shape of a trough having a
bottom wall 25 and a pair of side walls 26, 27. Connector mounting
parts 28, 28 are formed at both ends of the case body 23 in a
longitudinal direction. The connector mounting part 28 is formed on
the side wall 26 too. Each of the connector mounting parts 28 is
formed in an open shape, as the part for mounting a connector
housing 31 of the connector part 10, which will be described below.
It is to be noted that the connector housing 31 may be integrally
formed with the case 9 so that the case 9 has a function of the
connector part 10. In this disclosure, the connector housing 31 and
the case 9 may be formed either integrally or separately, provided
that they can be connected to the exterior.
[0040] The side walls 26, 27 are provided with a plurality of
locking projections 29. These locking projections 29 are formed as
parts for locking the lid body 24.
[0041] The lid body 24 is formed in a shape of a band capable of
covering an open part on an upper face of the case body 23. The lid
body 24 having such a shape is provided with a plurality of locking
arms 30 which are adapted to be locked to the locking projections
29 of the case body 23. Each of the locking arms 30 has elasticity,
and is so formed as to be locked, when it has run across the
locking projection 29.
[0042] Although, in this embodiment, the case 9 is adopted as the
member formed of resin for containing the flat wiring body 8, this
is not necessarily essential, but any other containing member may
be adopted. For example, the case 9 may be substituted with a
corrugate tube which is formed of resin into a shape of an
accordion pipe. Moreover, a heat-shrinkable tube may be used.
[0043] The connector part 10 is provided for the purpose of
connecting the flat wiring body 8 to the electronic control unit 2,
the auxiliary devices 3, 4, and so on. The connector part 10
includes the terminals 16, 19, 22, and the insulating connector
housing 31. The connector part 10 in this embodiment is formed by
inserting the terminals 16, 19, 22 into the connector housing 31
from a rear side (as one example, but not particularly
limited).
[0044] In the above described structure, the flat wiring body 8 is
formed by stacking the flat wiring bodies 11, 12, 13, in a state
where the flat wiring body 13 for ground is interposed between the
flat wiring body 11 for power and the flat wiring body 12 for
non-power, and then, by fixing them by appropriate means.
Thereafter, a plurality of the connector parts 10 for external
connection are mounted on this flat wiring body 8, and contained in
the case 9. In this manner, assembling of the flat wiring body
module 1 according to the disclosure is completed.
[0045] According to the flat wiring body module 1, because the flat
wiring body 8 having the above described structure is adopted, it
is possible to cope with the increase of the number of the
circuits, by enhancing density of the circuits on the board, and
hence, space saving can be achieved.
[0046] Moreover, according to the flat wiring body module 1,
because the flat wiring body 13 for ground is interposed between
the flat wiring body 11 for power and the flat wiring body 12 for
non-power, influences of noises on the circuit 18 for non-power can
be avoided by the presence of the flat wiring body 13 for ground,
even in case where the circuit 15 for power becomes a noise source
or a noise passage. Supplementary description concerning the flat
wiring body 12 for non-power will be made. The flat wiring body 12
for non-power is a passage for correspondence, for example, and it
is apparent that enhanced effects can be obtained, particularly in
case of high speed signal transmission, by adopting the flat wiring
body 12 for non-power according to the disclosure thereby to avoid
the influences of noises, as described above.
[0047] Further, according to the flat wiring body module 1, because
the flat wiring body 13 for ground is interposed as described
above, it is possible to position the circuit 18 for non-power
remote from the circuit 15 for power, by the thickness of the flat
wiring body 13 for ground.
[0048] Therefore, according to the disclosure, such an advantage
that it is possible to save the space, and at the same time, to be
hardly affected by the influences of noises is achieved.
[0049] Further, according to the disclosure, because the flat
wiring body 8 having the above described structure is adopted, such
an advantage that it is possible to enhance freeness in designing
is achieved.
[0050] It is apparent that the disclosure can be carried out in
various modifications within a scope not deviating from the gist of
the disclosure.
* * * * *